EP 0407328 A2 19910109 - Unloading system for two-stage compressors.
Title (en)
Unloading system for two-stage compressors.
Title (de)
Entlastungssystem für zweistufige Verdichter.
Title (fr)
Système de sûreté pour compresseurs à deux étages.
Publication
Application
Priority
US 37490789 A 19890703
Abstract (en)
An economizer is connected to a fluid line connecting the first and second stages (20a, 20b) of a compressor (20) at a point downstream of the bypass for unloading the first stage (20a). The economizer flow controls the discharge temperature of the second stage (20b) and, in addition, coacts with the bypassing of the first stage (20a) such that all of the flow supplied to the second stage (20b) is at system suction pressure when the bypass is fully open.
IPC 1-7
IPC 8 full level
F25B 1/10 (2006.01); F25B 5/02 (2006.01); F25B 40/02 (2006.01)
CPC (source: EP KR US)
F25B 1/10 (2013.01 - EP US); F25B 5/02 (2013.01 - EP US); F25B 40/02 (2013.01 - EP US); F25C 5/18 (2013.01 - KR); F25B 2400/13 (2013.01 - EP US); F25B 2600/2509 (2013.01 - EP US); F25B 2700/2104 (2013.01 - EP US); F25B 2700/21152 (2013.01 - EP US)
Designated contracting state (EPC)
DK FR GB
DOCDB simple family (publication)
US 4938029 A 19900703; DK 0407328 T3 19960729; EP 0407328 A2 19910109; EP 0407328 A3 19911211; EP 0407328 B1 19960515; IE 74707 B1 19970730; IE 902207 A1 19910116; JP H0345861 A 19910227; JP H0833251 B2 19960329; KR 0130756 B1 19980407; KR 910003337 A 19910227; SG 73377 A1 20000620
DOCDB simple family (application)
US 37490789 A 19890703; DK 90630118 T 19900612; EP 90630118 A 19900612; IE 220790 A 19900619; JP 17610990 A 19900703; KR 900009916 A 19900702; SG 1996003211 A 19900612